Stop counter



E. W. LARSEN Sept. 3, 1940.

STOP COUNTER Filed Oct. 20, 1937 Patented Sept. 3, 1940 i l unirse stares rarest' orrido) SEU? CDUNTER I Einer W. Larsen, Elmhurst, mi', assignor to 'Western Eiectric iompany, Incorporated, New York, l N. Y., a corporation of New York Application @ctober 2li, i937, Serial No. 170,079 it Taima (i'Ci. 23S-122i This invention relates te stop counters, and controlled. A xed shaft or center post it is more vparticularly to a revolution counter and mounted Within the housings in spaced parallel stop device for coil Winding machines. relation with respect to driving shaft i5. 'Three Gbjects of the invention are to provide a stop sleeves il, i and I@ are concentricaliy mounted o counter which is eiiicient, compact, durable, readon ixed shaft it so as to be rotatable with re- 5 ily adjustable, and easily and quickly resettable. spect to each other. inner sleeve il is rotatable in accordance-with the above objects, one enion the xed shaft, outer sleeve i is rotatable bodiment of the invention contemplates the prowithin a hub portion 2@ of housing ii, and intervislon ci a revolution counter and stop device mediate sleeve i8 is rotatable between the inner l comprising a rotary dial adapted to be driven and outer sleeves.

Y by either of three concentric driving sleeves. The A driving pinion 22 is xed to driving shaft i@ dial is marked With equidistantly spaced graduaand is in driving engagement with a gear 23 xed tions and the driving sleeves are arranged to be to or integral with inner sleeve il. A. pinion 2li driven in the same direction but at different iS Xed t0 0r integral With the Sleeve and is in l Speeds from the rotary shaft or member to be driving engagement with acgear 2E mounted for 15 controlled, the relative speeds oi the driving rOetiOn 0n e hub DertOn T25 0f hellem@ ii. Gear sleeves with respect to the member under con- 25 Carries e' concentric Dinie!! 28 which iS in drive trol and with respect to each other being such ing engagement with a gear 29 on intermediate .that each unit graduation on the dial will corresleeve it. A concentric pinion 3@ en seal'- 29 spond to the extent of movement of the dial icr is in driving engagement with a gear 82 which is 20 either 1., 1o or 100 revolutions of the member rotatable on the housing hub portion/'26. Gear under control, according to which one oi the 32 Carries a concentric 91111011 33 Which is in driv= three driving sleeves is operatively connected to ing engagement with e geel' 34 0n Outer Sleeve i9- the dial. Adjustable stop means is provided for The gear ratio-'5 0f the ebOVe described Sear varying the initial or starting position of the dial trains are such rthat foreach revolution of the 25 and a stop switch is arranged to be operated inner sleeve il, the intermediate sleeve i8 makes under the control of the dial upon the completion ilo'f e reVOllltiOn and the Outer Sleeve i9 makes of a predetermined number of revolutions of the tico 0f e reVOliltOH- member under control in accordance with the The face plate i2 is provided with a circular 30 starting position of the dial as determined by the Opening 35 fOr receiving an Outer ring 377 which 3@ setting of the stop means, is angularly adjustable and adapted to be clamped Other features and advantages of the invent0 the feCe plete by e Deir 0f demelicelly 013-' tion will become apparent from the following deposed clamping plates 3B, 38 (Figs. 1 and 4). tailed description when read in conjunction with An annular dial di) is rotatable Within outer ring the accompanying drawing, in which 3l and an inner ring 42 ,is l.mounted for rotary 35 Fig. 1 is a iront elevational view, partly in secmovement within the dial. An inwardly anged tion of a revolution counter and stop device emcenter disk i3 is mounted for rotary movement bodying the invention; within inner ring 12. The front surfaces of the Fig. 2 is a vertical sectional view taken on line two rings, the dial and disk d3 are all iiush with .w i22 of Fig. 1; the front surface of the face plate l2. so

Fig. 3 is a fragmentary sectional view taken Center disk 43 is provided with three eccentric online 3 3 oi Fig. 1, and holes d4, d5 and 4t in line with the front end Fig. 4 is adetail section on line #-4 of iig. 1. surfaces of sleeves i?, i8 and l, respectively. A Referring irst particularly to Fig. 2, it will be driving pin 4B is adapted to be inserted in either seen that the supporting structure of the device 0f the holes and each of the sleeves has a notch 45 comprises a cupfshaped gear housing it', a second 49 in its front end surface for receiving the in= cup-shaped housing il superimposed on the gear wardly projecting end of the driving pin, whereby housing, and a cover or face plate l2. The botcenter disk 43 may be selectively connected to tom of housing il serves as a cover for the gear either or the sleeves simply by inserting the drivhousing. ing pin in the corresponding hole in the center. 50 A counter driving shaft I5 is rotatably jourdisk. A readily removable cover plate 50 is pronalled in the two housings, as shown in Fig. 2, and vided for retaining the driving pin in position. the outer end oi this shaft may be provided With A screw clamp 52 having :an-operating handle suitable means (not shown) for connection with 53 serves as a convenient means for clamping in- 55 a winding arbor or other rotary member to be ner ring 42 to the driven center disk 43 so that 55 the sk. A vxed stop il in position to be engaged by a cooperating stop member 65 attached into the notch, as shown,

by two screws 55, to the inner surface of inner ring G2 for limiting rotation of this ring in a clockwise direction (Fig. 1). Thestop member 55 also serves as a means for clamping the dial d to the inner ring.

The dial 40 has a peripheral notch 51 which controls the operation of a mercury tube typev stop switch 58. The stop switch is carried bya pivotal frame 59 pivoted at 80 to housing H. The frame and switch are arranged to b e tilted by an oscillatory arm 52 pivotally suspended from a stud 63 iixed to the housing. A pawl 85 is pivoted at 66 to arm 62 and has a tip portion 61. A spring 68 urges the pawl in a clockwise direction (Fig. 1) about pivot 56 and a stop pin 69 onthe pawl engages the arm 62 to limit the clockwise movement of the pawl. 'Ihe spring also serves to urge the pawl toward the right (Fig. 1) so that upon rotation of the dial to the position in which the peripheral notch 51 registers with the tip portion of the pawl, the tip portion drops spring. The resulting movement of the pawl swings arm 62 in a direction to tilt the stopswitch to the closed position in which it is shown in the drawing,

When the device is to be employed in conjunction with a coil winding machine for stopping the rotation of the coil winding arbor upon the completion of the winding of a predetermined number of turns, the dial l0 is calibrated on its outerv surface in terms of vrevolutions of the winding arbor and the shaft l5 is connected to the winding arbor through suitable speed reducing gears adapted to rotate the dial at the proper speed. For example, in the device illustrated in the drawings the4 dial is marked on its outer surface with 300 equidistantly spaced graduations, which are numbered counter-clockwise in tens from 0 td 300. In connecting this device to a coil winding machine arbor, the speed reducing gears selected should be of such` a ratio that the dial will be rotated to the extent of one unit graduation for each revolution of the winding arbor when the dial is connected to be driven by the inner sleeve l1. Thus, each unit graduation on the dial will correspond to one turn of winding when the d ial is driven by the inner sleeve. Since the intermediate sleeve I8 is rotated at 116 the speed of the inner sleeve, it will be obvious that each unit graduation on the dial will correspond to 10 turns of winding when the dial is driven by the intermediate sleeve; and since the outer sleeve I9 is rotated at 1,400 the speed of the inner sleeve, each unit 'graduation on the dial will correspond to turns of winding when the dial is driven by the outer sleeve.

When the device is to be employed in conjunction with the winding of single winding coils, the outer ring 31 is angularly adjusted to a position in which a register mark 15 thereon registers with the zero graduation mark on the dial (lll when the dial is in the stop position, i. e. when the portion 51 of pawl 55 is engaged in the peripheral notch 51 of the dial, as shown `in Fig. 1. The outer ring is then xed in the adjusted position by clamping it to the stationary face plate I2 by means of the clamps 38. Now assuming, for example, that the coils to be wound require 280 turns of wire, which correspond to 280 revolutions of the winding arbor, the device is adjusted as follows: First, the center disk amasar under the force of the pawl, whereby the pawl i as explained above,

driving pin (it is inserted through the inner hole 8d of the center disk and into the notch it of inner sleeve I1, thus establishing a driving connection' between the center diskand the inner sleewe. Then the screw clamp 52 is `released by turning screw clamp handle 53 and stop and clamp member 55 is released from the dial it by loosening the two screws 55.A This permits the dial to be rotated around inner ring d2.Y Then, while the inner ring is held stationary with its stop member 55 engaging iixed stop 55, the dial is'manually rotated in a clockwise direction (Fig. 1) to a position in which the 280 graduation mark thereon registers with the register mark 15 on the iixed outer ring. Assuming that the parts are initially positioned as shown in Fig. 1, it willbe seen that at the beginning of the above referred to manual rotation of the dial in a clockwise direction, the peripheral notch 51 in the dial will engage and lift the tip portion 61 of pivoted pawl 65 and thereby swing the pawl in a counter-clockwise direction about pivot 66, against'the opposing force of spring 58. During this counter-clockwise movement of the pawl, the stop pin 69 `will move away from the rear edge of switch carrying arm 62. Then, as soon as the notch 51 -in the dial moves past the tip portion of the pawl, the spring 58 will swing thev pawl in a clockwise direction until the stop pin 69 again engages the rear edge of switch carrying arm 62. During this clockwise movement of the pawl the peripheral surface of the dial serves as an inclined cam track for the tip portion of the the left (Fig. 1), thus swinging arm 82 toward the left suiiiciently to cause the tilting of stop switch 58 counter-clockwise from the closed position illustrated to the open position.

The dial having been manually rotated to the position in which the 280 graduation mark thereon registers with the xed register mark 15, it is then clamped to the inner ring by tightening the clamping screws 55 to` draw the stop and clamp member 55 into clamping engagement with the dial, whereby the dial is constrained to rotate with the inner ring. Screw clamp handle 53 is then turned to draw the screw clamp 52 on the inner ring into clamping `engagement with center disk 33, so that the inner ring together with the dial are nowconstrained to rotate with the center disk. This completes the setting of the device for 280 turns of winding.

The device having been set, as described above, the winding of the coil is started. As the winding operation proceeds, the dial turns counterclockwise with inner ring 42 and center disk 53. Meanwhile, stop member 55 on inner ring 52 recedes from iixed stop 54. the zero graduation mark on the dial approaches the iixed register mark 15, and the peripheral notch 51 in the dial approaches tip portion 61 of the pivoted pawl. YUpon the completion of 280 turns of winding, the "zero graduation mark reaches the fixed register mark and, at the same time, the peripheral notch 51 in the dial reaches the position in which the tip portion 61 of the pivoted pawl drops into the notch under the force of spring 68. The pawl is thereby bodily shifted toward the right, thus swinging` arm 62 toward the right which causes the tilting of the stop switch 58 to the closed position showin in Fig. l. The stop switch may be connected by conductors 16 to any suitable electro-magnetic means (not is bodily shifted toward,

amasar shown) for eii'ecting the stopping oi' the winding operation upon the closing of the switch.

In order to reset the device for winding additional coils having the same number of turns, it is necessary, only, before starting the winding of each coil, to release inner ring 42 from center disk 43 by a slight turn oi s crew clamp handle 53 and then, by means ci' the same handle, turn the inner ring together with the dial in a clockwise direction until stop member 55 again en gages xed stop 54. The screw clamp handle is then again turned in the opposite direction to re-clamp the inner ring to the center disk.

In order to set the device for the winding of coils having different numbers of turns, but less than 300 turns, it is necessary in each case to release the dial from the inner ring and then angularly adjust the dial with respect to the inner ring so that when the stop member 55 engages the fixed stop 54, the graduation mark on the dial which corresponds to the number of turns desired registers with the xed register mark 75, and then re-clamp the dial to the inner ring.

Fbi winding coils having more than 300 and up to 3000 turns, the vcenter disk 43 is operatively connected to the intermediate sleeve i by means oi the removable pin 48, so that each unit graduation on the dial will now correspond to ten turns, since the intermediate sleeve is rotated at- 316 the speed oi the inner sleeve. The setting and resetting of the device for the desired number of turns is then accomplished in the same manner as described above with the exception, of course, that the graduation mark now selected for registration with the fixed register mark 'l5 will be 116 of the number of turns desired. In a similar manner, for winding coils having more than 3000 turnsand up to 30,000 turns, the center disk is operatively connected to the outer sleeve i9, so that each unit graduation on the dial will now correspond to one hundred turns, since the outer sleeve is rotated at loo the speed of the `inner sleeve. The setting and resetting of the device is then accompllshedas described above except that the graduation mark now selected for registration with the fixed register mark will be 1&0@ of the numberoi turns desired.

For winding coils having two windings of a different number of turns, an adjustable stop i0 is provided which is pivotally mounted on the outer ring 37 and is provided with a handle it for moving it into or out oi the path of stop member b. A spring pressed plunger i3 is mounted in outer ring 3l? and is adapted to engage either oi two holes i5, i6 in the stop 'i0 to frictionally hold the stop in either its operative or inoperative position. In Fig. l, the stop iii is shown in its inoperative `position, wherein it is irictionally held by the engagement oi the plunger it with the left-hand one of the holes it. By turning the handle in a counter-clockwise direction (Fig. i), the. stop it may be shifted to its operative position, wherein it is adapted to be frictionally retained by the engagement of plunger 73 with the right-hand one of the holes 16. By first releasing the two clamping plates 38, the outer ring may be manually rotated to adjust the position of stop l0 with respect to the dial and stop member E5.

In setting the device for the winding o double winding coils, the dial is angularly adjusted on inner ring 42 and then clamped thereto, as described above, so that if stop member 55 is in driving disk engagement with iixed stop 54 at the beginning oi' the winding of that winding of the coil which requires the greatest number of turns, then peripheral notch 5l in the dial will eiiect the closing of stop switch B8 upon the completion oi' that winding. The stop 70 is then adiusted with respect to the dial and stop member 55 so that if the stop member 55 is in engagement with the stop l0 at the beginning of that Winding o1' the coil which requires the lesser number ofA turns, then the peripheral notch in the dial will effect the closingof the stop switch upon the completion of that winding.

Assuming, for example, that it is desired to wind a double winding coil having an inner winding oi.' 80 turns and an outer Winding of 280 turns, the device is set in the following manner: First, the dial 40 is adjusted, as described above, so that the 280 graduation mark on the dial registers with the register mark i5 when stop member 55 is engaged with xed stop dii. Then, with the stop 'i0 in its inoperative position, as shown, the dial and inner ring d'2 with stop 55 are manually rotated in a counter-clockwise direction to a position in which the 80 graduation mark on the dial registers with the register mark l5. Then, while the dial is held in this position, the outer ring 3i is manually rotated to a position in which the stop l0, when shifted to its operative position, will be in the path of stop 55 when the latter is moved in a clockwise direction. The stop l0 is then shifted to its operative position and by manually rotating outer ring 3l, the stop l0 is engaged with stop 55. With the parts thus adjusted, the outer ring is clamped to fixed plate i2 by means of the clamps 38.

The above adjustments having been made, the operation of the device, when winding double winding coils of the type referred to, is as follows: At the beginning of the iirst winding oi' each coil, the dial and inner rotated to a position in which the stop 55 engages the stop l0, as explained above, and in this position' the dial and inner ring are clamped to 43 by means of screw clamp 52. Now, during the winding of the rst winding of the coil, the dial turns counter-clockwise with inner ring 42 and driving disk t3, the stop 55 recedes from stop i0 and peripheral notch' Ell in the dial approaches the portion @l of pivoted pawl @5. Upon the completion of the 80 turns required for the first winding, the peripheral notch Si arrives at the position in which it causes the tilting of the stop switch to 'the closed position, thereby stopping the winding operation. Before starting the winding of the second or outer winding of the coil, stop l0 is shifted to its inoperative position, screw clamp is released and the dial and inner ring are then manually rotated in a clockwise direction about driving disk lil to a positionin which stop do engages fixed stop 50. in this position, the dial and inner ring are then clamped to the driving disk, after which the winding of the second windu ing of the coil may be started. During the winding of this second winding oi the coil, the dial turns counter-clockwise, stop 5E recedes from stop iid and peripheral notch 5l approaches tip portion @l of the pivoted. pawl in the same manner as described above for single Winding coils; and upon the completion of the 280 turns required for the second winding, the notch 51 causes the tilting of the stop switch to the closed position, thereby stopping the winding operation.

ring are manually' Now, before starting the rst Winding of the next coil, stop it is shifted to its operative position, screw clamp 52 is released, the inner ring and dial are manually rotated in a clockwise direction to a position in which stop 55 engages stop it, and in this position the dial and inner ring are clamped to driving disk d3, as explained above. i

From the above description, it will be seen that a simple, compact and self-contained revolution counter and stop device is provided which may be readily connected to any rotatable member, such as a winding arbor, to automatically stop the rotation thereof upon the completion of a predetermined number oi' revolutions or coil winding turns. It will be apparent, also, that the device is readily and quickly adjustable for any desired number of revolutions or turns within a wide range and that substantially the same high degree o accuracy is obtained for any num' ber of `revolutions or turns within the wide range. It will be obvious, also, that the device is readily and quickly resettable, since the resetting operation in no case requires more than one revolution o the dial.

It is tc be understood that the invention is not limited to theparticular construction and embodiment herein illustrated and described, except insoar as is defined by the appended claims.

What is claimed is:

l. A counter comprising a rotary dial, a plurality of driving members for said dial, means for driving said members simultaneously at different angular speeds, and meansl for selectively connecting the dial to any` one of said driving members.

2. A counter comprising a rotary dial, a driving element for said dial, a plurality of driving members for said driving element, means for driving said members simultaneously at different angular speeds, means for selectively connecting the dial driving element to any one of said driving members, and means for detachably connecting the dial to said driving element.

3. A counter comprising a rotary dial, a plurality of concentric driving members for said dial, means for driving said driving members simultaneously at different angular speeds, and means for selectively connecting the dial to any one of said driving members.`

e. A counter comprising a rotary dial, a con-4 centric driving disk for said dial, a plurality of concentric driving sleeves for said driving disk, means for driving said driving sleeves simultaneously and at different speeds, and means for selectively connecting said driving disk to any one of said driving. sleeves.

5. A counter comprising a rotary dial, a driving member for said dial, a shaft for driving said member, a second driving member for said dial, means for driving the second member from the rst member at one-tenth the speed oi the iirst member, and means for selectively connecting the dial to either of said members.

6. A counter comprising a rotary dial, a plurality of rotary driving members for said rotary dial, means for driving said members simultaneously in the same direction at diierent angular speeds, and means for selectively connect-1 ing the rotary dial to any one of said members. '1. A counter comprising a rotary dial, a plurality of rotarydriving members for said rotary dial, means for driving one of said members, means interconnecting said members whereby they are driven simultaneously at'different angular speeds, and means for selectively connecting the rotary dial to any one of said members.

8. A counter cvomprisinga rotary dial, a plurality of concentric driving member for said rotary dial, means ior driving one of said members, means interconnecting said members whereby they are driven simultaneously at diiferent speeds, and means for selectively connecting the rotary dial to any one of said members.

9. A counter comprising a rotary dial, a driving member for said dial, means for driving-said member, a second driving member for said dial,

`means for driving the second member from the nrst member at an angular speed diierent from that of the first member, and means for selectively connecting the dial to eithervone of said driving members.

10. A counter comprising a rotary dial, a driving member for said dial, means for driving said member, a second driving member for said dial, means for driving the second member at one-tenth the speed of the first member, and means for selectively connecting the dial to either of said members.

EINER W. LARSEN. 

